Brian2001SS

iTrader: (1)

Just got back from a friends house, and he has installed a lt1 in a very early customized pickup. The problem is there is a hissing from the tb. Its the two holes in the bottom of the throttle body that are doing it. Where does those hole lead to and what do they do. You can see them when to take the filter off and look at the blades. What cam we do to get it to stop hissing?

Shawn MacAnanny

iTrader: (12)

Aren't those holes for the PCV system?

95_Firehawk_Dude

I thought they were.

Lswonder

yeah those are pcv holes try and get those plugged or put the pcv system on it.